Punching machine



July 11, 1939; E. J. RABENDA PUNCHING MACHINE 4 Sheets-Sheet l Filed Dec. 3l, 1957 FIGQZ.y

July 11, 1939. E'. '.1. RABENDA PUNCHING MACHINE Filed Dec. 31, 1937 4 Sheets-Sheet 2 www lNVENTORf W ATTORNEY July lll, 1939. E. J. RABENDA PUNCHING MACHINE Filed Dec. 3l, 1937 4 Sheets-Sheet 3 FIG. 5.

INVEN a ATTORNEY E. J. RABENDA PUNCHING MACHINE July ll, 1939.

Filed Dec. 5l, 1937 FIG.7.

4 Sheets-Sheet 4 'gamine-32a.

START m n.443 l 331, 1435 n n D u E'. n :|77 c1 n l: n n n n c# u u 1:: n u l: n :L n n I:

,i /20a r/za i lNvl-:NTOR M BY ATTORNEY PatentedlJulyV 11, 1939.9.

uNrnDl 4STATES I I 2,165,302 Pa'rl-:N'rI ori-1GB ansatz Y IVUNCHING MACHINE Y Edward J. Rabenda, Binghamton, N. Y., asalgnor to International Business Machines Comration, New York, N. Y., a `corporation of New York Application December a1, 1931, sei-1an No. 182,148

1s claims. (c1. 164-115) under control of accounting elements of accounting machines, etc.

Such forms of punching machines have been 15 found to be extremely accurate in their operation even when operated at high speeds. such machines, like other machines, are despite the high quality of manufacture and proper design, susceptible to wear and tear, and sometimes are operated under disadvantageous conditions, such as in places wherev dust and dirt may enter within the machine. Under such conditions the machine may fail to punch'properly and to guard against such rare instances the present machine includesan arrangement to detect such conditions and effectively warn the operator. is an indication of the requirement for service, cleaning or adjustment of parts. This warning is given at the first instance of improper punching thereby preventing the machine from running continuously and improperly punching a large batch of cards and unknowingly permit their subsequent use with resultant errors in accounting operations performed under control of these cards. y

It is, therefore, the main object of the present invention to provide for a punching machine a means for detecting whether cards are punched to represent the desired data to be punched under control of certain controlling means.

More specifically, it is an object of the present invention to provide means to cause the actuation of a punch pin and means controlled by the punch pin for indicating that the punch pin has not been actuated by the actuating means.

45 A still further object-'of the invention is to provide means for eifecting certain distinctive markings on a punched card if the card is not properly punched to represent the desired data.

A still further object of the present-invention is to provide means for causing the punching mechanism to go through a second cycle of operation in the-event that the first cycle of operation has caused the improper representation of data by the failure to punch a card, but to prevent further operation of the punching mechanism, i. e., the third cycle of operation'.

The present invention is illustrated in connection with 'a punching machine of -a well known type and to illustrate the invention it is presumed that a card or cards are t be punched to reprethe manually settable type, or of thetype set f Hlowever,

'I'his warning sent data set up in a controlling device. `Suchcontrolling device may be set to represent a total under control of an accumulator of an accounting machine, another punched card, but for simplicity is shown in connection with a simple form of commutators manually set to represent data to be punched. c

Inthe present machine for the purpose of illustration the machine goes through a card feeding cycle so as to feed the card step-by-step past a line of punch pins, and magnets are energizedof contacts in the circuit, one set of contacts being closed in accordance with the energization of the punch control magnet and the other set of contacts being closed by and when the punch pin is actuated. 'I'he simultaneous closure of both sets of contacts retains the circuit open, but if one set opens at a dissimultaneous time the relay magnet is energized. This will cause the punching machine to stop and the relay magnet will cause a light to be illuminated and the marking of the card to indicate an error in punching.

The machine preferably -includes means to cause the punching machine to go through another cycle of operation, but if the next cycle of operation should also eifect' an omission of the punching then the machine will actually stop in its operation. y

'I'he present 'invention is shown for purposes of illustration in connection with a punching machine of a well known type shown and described in the patent to C. D. Lake. #2,032,805, dated March 3, 1936 but may be. utilized in connection with 4*other punching or marking machines as well.

Further objects of the instant invention reside in any novel feature of construction or operation or novel combination of parts present in the embodiment of the invention described and shown in the accompanying drawings whether within or without the scope of the appended claims and irrespective of other speciiicstatements as to the scope of the invention contained herein.-

In said drawings:

Fig. 1 is an outside view of the punching machineshowing in detail the driving mechanism therefor.

Fig. 2 is a view of a portion of a punched card showing a cancellation notch at the bottom indicating an omitted punching operation.

Fig. 3 is a detail view of the punching mechanism and the electrical punch' selecting devices therefor.

Fig. 4 is a detail view of the Geneva drive for the card feeding mechanism.

Fig. 5 is a timing diagram of cams and other devices controlling electrical contacts.

I punching machine.

Fig. 7 is an' electrical wiring diagram.

Fig. 8 discloses a modified form of a contac operating device shown for only one order.

When the current supply is applied to the line wires II), II (Fig. '1) the motor M is started in `operation and runs continually as long as the line switch .S is closed.

The blank cards I2 to be punched are placed in a supply magazine I3 (Fig. 6) so that the lower- .most card rocks a pivoted card lever I4 to close card lever contacts MCL.

From Fig. l it is evident that motor M drives a pulley I5 to which pulley I5 there is secured a pinion I6 driving a gear I1 to which there is secured a pinion I9 meshing with a gear I9 which is loosely mounted on a shaft 20.

Attached to gear I9 isa notched disk 22 loose on the shaft 26. Adjacent the disk 22 is an arm 23 secured to the shaft 20 and carrying a' clutch pawl 24 pivoted thereon. 'I'he pawl has an extension adapted to ilt in the notch 22a of the disk 22 and is urged to engage the disk by a spring 25. However the pawl is held disengaged by an armature latch 26 which engages an exl magnet 21.

'ultimately fed to astorage hopper 4I.

tending arm of the pawl. When the card feed clutch magnet `21 is energized the associated an'nature is attracted and latch 26 is rocked to. the left about `pivot 28, releasing awl 24 for actuation by spring 25 and connecting shaft 20 to the driving gears.

A gear 2|, attached to the shaft 20 is in mesh with a gear 29 which is in mesh with a gear 29 secured to a shaft 30'.

The shaft 30' carries a series of cams adapted to close contacts herein designated as CC contacts', one of such, for instance, being the contacts CC-I shown in Fig. 6. The timing of these and other cam contacts is shown in Fig. 5. Therefore, as will be seen in Fig. 7 a relay magnet 32 is energized when a start key Start is depressed. 'I'he lattercloses its relay contacts 32a to provide a stick circuit under control of contacts CC-I. Magnet 32 closes its contacts 32h (top of sheet) to energize the card feed clutch' 'I'he circuit extends from line side I0, magnet 21, relay contacts 32h, cam contacts CC--2 now closed, to line side II.

When shaft 20 is rotated a pair of complementary cams 33, 34 (Fig. 4) are operated. A two-armed lever 35 secured,to a shaft 36 carries a pair of rollers cooperating with the cams 33, 34 so as to rock the shaft 36. Attached to the rock shaft 36 are sector arms 31 (Fig. 6) provided with gear teeth that mesh with racks on the picker slides 38. A picker 39 attached to the slides is adapted to engage the bottom card in the hopper I3 and move the card to the left (Fig. 6) when the picker slides 38 are reciprocated by the cams 33, 34 on the shaft 26.

'I'he first cycle of machine operation in which a card is fed from the supply magazine I3 brings the leading edge of the card to a line of punches 40 while the second cycle of machine operation feeds the card past the punches and by feeding rollers to be later described the punched card is When cards are in the magazine a lever I4 is' rocked as previously stated to close contacts MCL to thereby cause a relay magnet 43 to be energized to retain its relay 'contacts 43a. closed as long as there are cards in the supply magazine.

When cam contacts CC-I open,v the motor relay magnet-32 would be deenergized'l causing the opening of relay contacts 32h and the consequent deenergization of the card feed clutch magnet 2l and card feeding would thereupon stop but to cause the automatic operation of the card feeding mechanism the following is provided.-

During the first card feeding cycle the rst 'card will cause the closure'of die card lever contacts DCL so that when cam contacts CC3 close at the end of the first cycle and before cam contacts CC-I open to deenergize magnet 32a circuit will be closed from line side i9, to a relay magnet 44, cam'contacts CC-3, card lever contacts DCL to line side II, thus energizing relay magnet 44. The latter closes its stick contacts 44a and also relay contacts 44h. The stick circuit for relay magnet 32 is now through relay contacts 32a, relay contacts I35b normally closed, relay contacts 44h, relay contacts 43a now closed, through stop key Stop to the line side II. By the last described circuit the relay contacts 32h will be retained closed so that each time the cam contacts CC-2 close an impulse will be transmitted to the card feed clutch magnet 21 for each of the successive card feed cyclesfand as long as cards are being fed, unless card feeding is interrupted in a manner to be subsequently described.

The gear I6 (Fig. 1) is attached to the pulley I5 and both are attached to a shaft 41 (Fig. 4) which rotates continually. A roller 48 (Fig. 4) on a stud extending from the gear I6 forms a means for driving a Geneva step motion gear 49 with an intermittent movement. 'I'he Geneva gear 49 is attached to a shaft 50 but is locked in each position by the cooperation of a concentric formation 5I at the end of each radial extension with a hub 52 on shaft 41. The roller 48 moves idly for the greater part ofthe arc about shaft 41 until it engages in one of the slots 53 in gear 49. 'I'he gear is moved with a gradually accelerated and then gradually retarded motion which is stopped as the roller 43 slips out of a slot 53. The gear 49 is released for each step of movement by avdepression 54 in the side of hub A52. The depression 54 is presented only when the roller 48 is in position to drive the gear 49.

' Attached to the shaft 50 is a gear 55 (Fig. 4) which meshes with a gear 56 and a gear 51. The gear 51 is attached to a shaft 59 to which is secured a pinion 59 (Fig. 1) in mesh with a pinion 60 attached to a shaft 6I. As shown in Fig. 6 a pair of rollers 62 is secured to the shafts 59 and 6I and thereby the card is fed between and by the rollers 62 and to the series of punches 40 in a step-by-step motion. To feed the cardv as it passes the series of punches there is provided a pair of rollers 63 (Fig. 6) attached to shafts 64. Shafts 64 are intergeared by pinions 65 (Fig. l) and the uppermost pinion 65 is rotatable with the gear 56.

Therefore, the card is fed by the pairs of rollers 62 and 63 in a step-by-step movement past the line of punches 40 of which there is one for each column of the card.

Referring to Fig. 6 and the wiring diagram disclosed in Fig. '1, when the card to be punched emerges from the supply magazine I3, it operates a card lever to cause the closure of the die card lever contacts DCL causing when cam contacts CC-3 close, as previously stated, the energization of the relay magnet 44 and the closure of its relay contacts 44e thereby extending the line side II to a commutator ring 66 of on emitter shown in Fig. 1 and designated emitter Em. As shown in Flg..1, thegear 88 meshes-with an idler pinion 81 which is in mesh with a gear 88 attachedto theshaft 59 ofthe emitterjm. The gear 88 is driven by the ,gear 88 through an idler pinion 5 1. A brh 18 engages the segment and the brush 1| ensues one of a series of 'segmentsv 12. 'Ihrough the gear driving connections shown the segments 12 are successivelyA engaged by' the.

brush 1| in the order that the corresponding index points of the card to be punched are presented to'the punches 4I (Pig. .6) of the punching machine.

Amount setting devices For the purpose of illustrating the present invention, there is disclosed a plurality of manu- -ally settable devices which are settable to with an electrically conducting segment 19 and the other brush with a selected one of a series of segments 11. The particular segment 11 which is engaged by the brush read-out device is dependent upon the number to be punched in the corresponding card column.

A plurality of such settable read-out devices is provided wherein it will be noted that the segments 11 representing thesame digit in each 'of the brush read-out devices are connected together by a wire 18, the plurality of wiring connections 18 being connected to the correspond-l ing segments 12` of the emitter Em. If, for example, the brush structure 15 should be positioned to represent 9 as shown by dotted lines in Fig. 'I then the card will be perforated at the nine index point position to represent 9 by the following electrical connections. At the time the 9" index point position is beneath the punch brush 1| engages the "9 segment 12o extending the circuit through a wire 18 connected tothe 9" segment 12s to the segment 11o (Fig. 7) which is engaged by the related brush structure 15 and by its commutator segment 18,` the line is extended to a plug socket 19. By a plug connection 80 to a socket 82 the circuit extends mined columns.

to a punch control magnet 8l which is connected to theother line side |0. While `only several punch control magnets 8| are shown the machine is preferably provided with a series of punch control magnets 8l, one for each card column, and the plug connections are made from the sockets 19 to the sockets 82, which are connected to the punch magnets 8|, in order that the card may be punched at the predeter- Only one emitter is necessary for a series of the manually settable devices which are to control punching operations. Thus, as the card is stepped along it ispunched in thev 4 various columns.

Any suitable punching mechanism maybe provided and the following is a description of the preferred form which is shown in detail in penor reed reuen-u wmenree'd n:l te the eter-.l

are hopper Il. f

The selective operation of the punch plungers 4l will be described with reference tofFlgs. 9 and 6. In Fig. 3,- it will be noted thatthe continually rotating shaft 41 is formed with an eccentric 85. n

which is encircled by an arm 85. The upper end '1 of this arm is pivotally connected to an arm 81 on shaft 88 which is provided with another pair of arms 89. Between these arms 89 and a punch operating bail 90, there is provided an adjust-l able turn-buckle connection. A threaded rod4 9| is' pivoted at 92 on arm 89 and another rod 95-is pivoted at 94 on bail, both rods'being connected by a left and right threaded bolt 95 which is Minstable to vary the position of the bail 90.

Bail 99 is pivoted on astud 95 in the main side framesand carries a punch` actuating bar 91 which is adapted to cooperate with notches 98 (Fig. 3) in ,any of a plurality of selected interposer pawls 99. Each of the punch plungers 40 has an interposerpawl 99 which is pivotally connected thereto by a pin |00. Normally, the

' pawl 99 is held out of thev path of the bar 91 and the plunger 40 is held above the die plate 84 by a spring |0| attached to the pawl. However, when the punch control magnet 8| is energized,

the associated pawl fisv drawn into cooperation with the bar-91 and the related plunger is subsequently depressed to perforate the card. The

.armature |02 of the punch controlling magnet 8| is part of a lever |03 pivotally connected at |04. The lower end of lever |03 is pivotally con'- nected to a call wire |05, the other end of which is pivoted at |08 to pawl 99. A plurality of such connections are made, one to each pawl, the

magnets 8| being arranged in staggered rows oicolumns. The'brackets |01 carry themagnets of one row as a unit and have arms |08 which hold an insulation bar |09 suspended upon the magnets to function as a terminal bar. When attracted, the armature |02 swings the lever |03 in a clockwise direction (Fig. 3) and draws wire |05 to the left, urging pawl 99 into cooperation v with bar 91. The wires |05 are guided by a slotted plate ||0l and the pawls 98 are .aligned-by slots in a plate fastened on a supporting bar H2, the plate ||I also being used to secure one end of springs I0|. The edge of bar ||2 cooperates with a cam face ||3 on each of the'pawls 99 to more positively holdthe selected pawls in cooperation with the bar'91 as the bar 91 is lowered. An extension 4 on a fixed bar ||5 cooperates with the upper ends of the pawls to cam them in a clockwise direction out of engagement with the ascending bar 91 on the return stroke of the bail. In order to positively hold the pawls in disengaged position the end of the bar 91 cooperates with a cam face H6 on each 'I'here is a limit to the downward motion of the punch plungers 40 because of the presence of a fixed bar ||1 which projects into notches ||8 cut in the side ofApunch plungers 40. 'I'he punch plungers are guided above the holes in the die plate 84 by' sliding in holes of the fixed bar I|9 and the stripper plate 83.

The operation of the punching is timed to occur during the .pause in card feeding when the Geneva wheel 49 (Fig. 4) is not inaction. The eccentric is placed on the shaft 41 in such a position that when the bail is reciprocated the roller 48 is out ofengagement with the wheel 49. As the bail 90 and bar 91 are reciprocated, any of the pawls may be moved .cver'byf'the call wires untill notches 98 engage theendof bar 81. 'I'hen the connected pawls andplungers are depressed to peri'orate the card and quickly withdraw therefrom to permit the feeding of the card to the extent of anothery -hole step to thereby position the next index point positionsoi a. horizontal line of the card to the line of punch plungers 40.

Checking feature many column checking devices as there` are columns being punched.

For each controlling magnet 8| there is provided a relay magnet |20 which is in parallel with the punch control magnet 8|, as seen in Fig. 7. Each magnet |20 when energized opens its contacts |20a and closes contacts |2017. Re

ferring to Fig.- 3 it will be seen that slidably mounted in the stripper plate 83 is a plunger |2| and it will also be noted that the punch l plunger is provided with a cut or cam-shaped depression |22. `A pivoted double arm |23 has its lower arm abutting one end of the plunger |2,| and the other arm is pivoted at |24 to a rod |25 having a hook portion |26 hooking over the center blade oi.' contacts |21 and |28. The resiliency of the center blade rocks the double-arm |23 through the rod |25 so that the lower arm of the double arm abuts the plunger |2|. When the punch plunger 40 is depressed the cut or cam-shaped depression |22 thereof receives the plunger |2| to permit the resiliency ofthe center blade of contacts |21 and' |28 to open the former and close the latter, as is evident from Fig. 3.

Referring to Fig. '7 it is evident that wires |29 and |30 interconnect the contacts |20a, |2017, |21 and |28 in such marmer that between line wires |3| and i 32 there is normally an open circuit. However, if the punch plunger 40 should not be depressed when magnet |20 is energized relay contacts |20b will be closed and contacts |21 will remain closed thus connecting line wires |3| and |32.v The result would be the same if the punch plunger 40 was depressed and thel magnet |20 not energized, inwhich case contacts |28 would close to connect line wires |3| and |32. Cam contacts CC-4 connect the line side with the wire |3| during the time the magnets |20 are energized during the punching operations.

The wire |32 is connected to one side of the three pick-up relay magnets designated by numerals |33, |34 and |35, the other side'of these magnets being connectedto'the line side i0, and all areenergized'when line wires |3| and |32 are interconnected.

The pick-up relay magnet |33 will close its relay contacts |33a to cause the holding magnet |31 to be energized since cam contacts CC-5 now closed are in circuit connection with the relay contacts |33a. 'I'he holding'magnet |31 will also by its -energization cause contacts |33a to be held closed and as long as cam contacts CC-5 are closed.

The relay magnet |34 will close its relay contacts |34a thereby energizing a holding magnet |3Bvwhich causes it to retain contacts |340, closed.

In multiple with the magnet |36 is a signal lamp |41. obviusly, the illumination of this lamp is an indication of an error in punching or a failure to properly punch and the lamp is retained illuminated until a key |38a is depressed to open the circuit by disconnecting the line side 'I'he energizationl oi.' the pick-up magnet |35 will cause the closure of relay contacts |3511 which will cause a relay magnet |38 to be energized, the circuit being from line side I0, relaymagnet |38, relay contacts |a, cam contacts CC-6 tothe line side i. When cam contacts CC--l close at the "13th point in the cycle a circuit will be made from line side cam contacts CC-S c losed at this point in the cycle, relay contacts |354, cam contacts CC-1, relay magnet |39, to the line side I0. The relay magnet |39 causes the closure of its relay contacts |39a, thereby extending a circuit from the line side I0. a punch control magnet 8|, a socket 82, plug connectionl |42, a socket |43 to relay contacts |39a, the contact point 121;, brushes 10, 1| commutator segment 66, relay contacts 44e, to the line side The punch magnet 8| is selected to punch a special notch |50 (sec Fig. 2) in a. desired columnand is effected by a related punch plunger when the bottom ofthe card is correlated with the punch plunger, at which time cam contacts CC-1 close to energize relay magnet |39 and the segment 121s is contacted to cause the selected punch control magnet 8| to be energized. 'I'he reason that the error designation appears as a notch is that at the time the punch control magnet 8| is energized to eilect this vpunching operation the leading edge of the card is substantially mid-way of the line of punches 40. Of course, if the card was slightly longer, designation would not appear as a notch but as a hole, like the holes shown in the card of Fig. 2. By timing the energization of the magnet 8| so as to be energized slightly earlier, an error designating perforation can be provided. However, the notch is more suitable and more easily identiiied as to its meaning, since if it was a hole it might be interpreted as the perforation representing 9..

It will be recalled that the relay magnet 32 is retained energized through the relay contacts |3517, and obviously with the disagreement effected the contacts |35b will open to cause the cessation of the card feeding and punching cycle. This may be desirable in some cases but in others it may be desirable to eiect a repetition punching and by means now to be described this is preferably eiected.

It will be seen that relay contacts 32a and relay contacts |3573 are shunted by relay contacts |33b and relay contacts |43b so that even though relay contacts |351 open as a result of a disagreement the relay contacts |33b closing as a result of the disagreement together with relay contacts |43b shunt the relay contacts |3517. As a result of this shunt circuit the relay magnet 32 will be retained energized so that the punching machine will go through a second cycle of machine operation even though the preceding punching operation has been in error.

As a result the second card punching cycle ensues and from Figs. 5 and 7 it will be seen that at the initial part of the cycle cam contacts CC-8 close. It will be recalled that the relay contacts |33a are held closed by the energization of the holding relay magnet |31 and the latter is retained energized during the second card punching cycle by the closure of cam connetl 'will cause of itsr relay contacts lua to -cause the energization of the holding relay magnet |43 the circuit being from line line side Il.

side I0, magnet |43, relay contacts Illa closed' by relay magnet i, cam contacts CC-S to the The magnet TI will also keep contacts Illa closed and such will remain closed duringthe remainderof the cycle, due to the continuedclosure of cam contacts CC-9.

If a disagreementshould `be effected during the second cycle of operation relay magnet will be energized, as before, to open contacts |35b and relay magnet I Il will be energized to close its relay contacts |33!) as before, but since relay contacts lb are now open the shunt circuit for relay contacts |3512 comprising relay contacts |33b and relay contacts lbis open so that the relay magnet 32 is deenergized and the third punching cycle will not be effected.

'I'he operator will notice the stopping of the machine and observing that cards are still in the magazine and noticing the illuminationof the lamp |41 it will indicate to him that two cards bearing cancellation notches have been improperly punched and the reason for this can be investigated.

-If so desired thel relay magnet |20 may be dispensed with and the relay contacts |20a and |2012 can be controlled by the punch control magnet 8| itself, asshown in Fig. 8 thus eliminating a'number of parts and simplifying machine.

`It is the intention, therefore, not to limit the claims to the particularform of control including the specially provided relay magnet |20.

While there has been shown and described and pointed out the fundamental novel features of the invention as applied to a single modication it will be understood that various omissions and substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention. It is the-intention, therefore, to be limited only as indicated by the scope of the following claims.

What. is claimed is:

1. In a punching machine, in combination, card punching means, actuating means therefor, means for selecting said punches for operation by said actuating means, means for detecting the failure of operation of any selected punch by said actuating means, and means for effecting under control of ksaid detecting means the distinctive characterization of a card which is erroneously punched.

2. In a cyclically operable punching machine, punches and actuating means therefor, means for initiating and means for effecting continued successive cyclic operations of said punches and said actuating means, means for detecting the failure of any punch to be actuated by said actuating means, and means for causing said detecting means to control the operation of the,l

, means Afor effecting the continued cyclic operation of the punches and said-actuating means.

3. In a cyclically operable record punching machine, including punches and actuating means therefor, means for initiating and means for 4effecting continued cyclic operation of said punches and said actuating means to punch suc- Illa,

detecting means for detecting -the failure of a punch to be actuated by said'actuatingxneans, andy means for causing said'detccting means to control theoperation ofsaid devices...v

4. Ina cyclically operable punching machine, means for causing the successive automatic cyclic operations of said machine, a punching mechanism comprising punch instrumentalities and means for selecting said instrumentalities for operation, detecting means controlled by said punch instrumentalities and said selecting means for detecting the actual operation ofthe former under control of the latter, and means for causing said detecting means to control the operation of said'flrst-named means inaccordance with the results determined by said detecting means.

5. In a cyclically operable punching means, punches* and actuating means therefor, means for initiating and means for effecting continued cyclic operations of said punches and said actuating means, means for detecting thefailure of any punch to be actuated during each cyclic operation, devices for rendering the means for effecting continued cyclic operations ineffective, and means under control of said detecting means and responsive to the operation of the detecting means in detecting the failure of a punch to be actuated by said actuating means during two cyclic operations for causing said devices to .be effective.

6. In a cyclically operable punching machine,

punches and an actuating member therefor,

means for effecting continued cyclic operation of said punches -and said 'actuating member, means for detecting the failure of any punch to be actuated in each cyclic punching operation, devices controlled by said detecting means to prevent said rst-named means from being eifective to cause continued cyclic operations, other means rendered operative under control of said detecting means during the failure of any punch to bev actuated in the same cyclic operation to render said devices ineffective whereby a successive cyclic operation will follow, and means under control of said detecting means and responsive tothe operation of the detecting means in `detecting the failure of a punch to be actuated during the second-or successive cyclic operation for causing the rst-named means tofbe ineffective to thereby prevent continued cyclic operations.

'7. In a punching machine, a single line of punches, actuating means therefor, a plurality of means for causing the actuation of said punches by said actuating means to punch a record at predetermined index points thereof, devices for controlling the operation of the machine, means for detecting the failure of a punch to be actuated by said actuating means, and means for causing'the detecting means to control the operation of said devices.

8. In a punching machine, punching mechanism therefor including punches and actuating `means therefor, data representing means, means -and said selecting means for detecting the failure of 'the operation of a punch by said actuating means in response to said selecting means,

Y and means for causing said detecting means to control the operation of said devices. y

10. In a punching machine, punches, punch actuating means,means for causing the selection ofsaid punches for actuation by said actuating means, means for controllingv the operation of the machine, means controlled conjointly by said punches and said selecting means fondetermining whether all of the selected punches have been actuated by said actuating means, and means for causing the last-named means to control the operation of the means for controlling the operation of the machine.

11. In a punching machine, a punching mechanism including punches and actuating means therefor, means for selecting said punches for operation by said actuating means, a checking means for determining whether selected punches are actuated by said actuating means comprising devices operated under control of said punches and other devices operated under control of said selecting means, and control means responsive to the operation of both of the aforesaid devices.

12. In a punching machine, punches, punch actuating means, selecting Vmeans for causing the actuation of said punches by said actuating means, devices operated by the actuation of said punches, other devices operated under control Iof the selecting lmeans for causing the actuation of said punches, and testing means for determining whether said devices'have been simultaneously operated.

13'. In a punching machine, .a punch, actuating means therefor, a punch control magnet for causing by an electrical impulse transmitted to said magnet the actuation of said punch by said actuating means, a checking circuit including a relay magnet in said circuit, contacts operated by the actuation of said punch, other contacts operated by a magnet receiving the electrical impulse transmitted to the punch control magnet, and means for causing both of said contacts to control said checking circuit for controlling the energization of the relay magnet in accordance with the simultaneous or dissimultaneous operation of both of said contacts.

14. In a cyclically operable record punching machine, punches and actuating means therefor, cyclically operable means for feeding successive records to said punches, detecting means operative in each successive punching operation of the machine; for detecting the failure of a punch to be actuated by said actuating means, and means for causing said detecting means to control the operation of said record feeding means to cause record feeding operations to be terminated subsequent to the operation of the machine in which failure of punching occurs.

15. In acyclically operable punching machine, punches, actuating means for operating said punches, record feeding means for feeding records to said punches, power operated means for causing the operation of smd actuating meansarcanos and said record feeding means, means for detectd ing in each successive punching operation ofthe machine the failure of the operation of a punch by said actuating means, and means for'causing said detecting means to control the operation -of the power operated means to cause the cessation of operation of the record feeding means in a machine operation subsequent to the operation of the machine in which failure of punching occurs.

16. In a record punching machine, a punching mechanism including punches and actuating means therefor, a start key, record feeding means for feeding records to the punches, means under control of the start key for initiating the operation of the feeding means, means for effecting continuedl cyclic operation of the record feeding means, means for detecting the failure` of an operation of a punch by said actuating means, and means for causing said detecting means to control the operation of the means for effecting continued cyclic record feeding means. v

17. In a cyclically operable record punching machine, punches and actuating means therefor. cyclically operable means for feeding successive records to said punches, detecting means for detecting the failure of a punch to be actuated by said actuating means, andvmeans controlled by said detecting means and responsive to the detecting means detecting the second failure of a punch to be actuated by said actuating means to render said feeding'means inoperative.

18. In a punching machine, punches, means operations of the for feeding records to be punched in a step by step operation past said punches, means for effecting continued cyclic operation of said feeding means for successively feeding records lto said punches, means for successively actuatingsaid punches in `an operation synchronous with said step by step feeding operation, detecting means for detecting vthe failure of a punch to operate to punch the record, and means for causing said detecting means to control the operation `of the means for eecting the continued cyclic operation of said feeding means.

19. In a record punching machine, a punching mechanism including punches. and actuating means therefor, a start key, record feeding means for feeding records to the punches. means under control of the start key for initiatingl` the operation of the feeding means, means for effecting continued cyclic operation of the record feeding means, means for detecting the failure of an operation of a punch by said actuating means, devices controlled by said detecting means to control the operation'of the means for eifecting continued cyclic operations of the record feeding means for causing said means to be ineffective upon the failure of a punch to be actuated in each cyclic operation, other means controlled by the detecting means for effecting the second cyclic operation of the feeding means upon the rst failure of a p ch to be actuated irrespective of the operation of said devices, means set up during the'second cycle of oper/ation, and means operated under control of thyset-up means and the aforesaid devices controlled by the detecting means when the latter detects the second failure of' a punch to be actuated for causing the record feeding means to stop in its operation. I

EDWARD J. RABENDA. 

